rkhachatryan commented on a change in pull request #18391:
URL: https://github.com/apache/flink/pull/18391#discussion_r794396173
##########
File path:
flink-state-backends/flink-statebackend-changelog/src/main/java/org/apache/flink/state/changelog/ChangelogStateBackend.java
##########
@@ -271,7 +273,7 @@ public StateBackend configure(ReadableConfig config,
ClassLoader classLoader)
keyedStateHandle instanceof
ChangelogStateBackendHandle
? (ChangelogStateBackendHandle)
keyedStateHandle
: new ChangelogStateBackendHandleImpl(
-
singletonList(keyedStateHandle),
+
singletonMap(UUID.randomUUID(), keyedStateHandle),
Review comment:
Maybe we should reconsider
https://github.com/apache/flink/pull/18391#discussion_r787631347
> Btw, won't it solve the problem if we register all files in
IncrementalRemoteKeyedStateHandle with SharedStateRegistry (including metadata
etc.)? This would be much simpler I think in all respects.
> I guess previously there just was no need to register them (and they must
be kept separate for restore).
Another option is to disallow recovery from incremental non-changelog
checkpoints (leaving savepoints and full RocksDB checkpoints). But this seems
quite a big limitation.
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